# Module & Function Whitelist

With this module & function whitelisting dapps can sponsor only transactions from a whitelisted modules and functions.

## Using SDK

### Function Whitelist

To add function to whitelist

```typescript
;(async () => {
  const projectKey = process.env.PROJECT_KEY as string
  const privateKey = process.env.PRIVATE_KEY as string
  const paymasterSdk = new PaymasterSdk({ privateKey: privateKey }, { projectKey: projectKey, network: Network.TESTNET chain: chainName.Aptos})
  // chain by default aptos
  // network by default mainnet
  const addWhitelistFunctionsResponse = await paymasterSdk.addWhitelistFunctions({
    functions: [
      {
        module_name: 'aptos_account',
        function_name: 'batch_transfer_coins',
        module_address: '0x1',
      },
    ],
  })
  console.log('addWhitelistFunctionsResponse', addWhitelistFunctionsResponse)
})()

```

## Dashboard

On the dashboard you can manually add functions to whitelist.

<figure><img src="/files/uBtrnhvFwBD6dRPWyOGd" alt=""><figcaption><p>Function Whitelist</p></figcaption></figure>

## Module Whitelist Function

To add module to whitelist

```typescript
;(async () => {
  const projectKey = process.env.PROJECT_KEY as string
  const privateKey = process.env.PRIVATE_KEY as string
  const paymasterSdk = new PaymasterSdk({ privateKey: privateKey }, { projectKey: projectKey, network: Network.TESTNET })
  // chain by default aptos
  // network by default mainnet
  const addModuleWhitelistFunctionsResponse = await paymasterSdk.addModuleWhitelistFunctions({
    functions: [
      {
        module_address: '0x1',
      },
    ],
  })
  console.log('addModuleWhitelistFunctionsResponse', addModuleWhitelistFunctionsResponse)
})()

```

## Dashboard

On the dashboard you can manually add module address to whitelist.<br>

<figure><img src="/files/SPYXC37nb1BoUrcUmRpc" alt=""><figcaption><p>Module Whitelist</p></figcaption></figure>


---

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